This presentation is all about schema that we use in database.

4. Product-Table
Item# Price Stock-date Description
1 500 1/15/12 Sunglasses
2 1000 11/9/12 T-Shirt
3 1500 6/6/12 Designer-Shirt

7. time
time_key item
day item_key
day_of_the_week Sales Fact Table item_name
month brand
quarter
time_key type
year item_key supplier_type
branch_key location
branch
location_key
branch_key location_key
branch_name units_sold street
branch_type city
dollars_sold province
avg_sales country
Measures

8. time
item
time_key
Week item_key supplier
Sales Fact Table item_name
day supplier_key
month brand supplier_type
time_key type
quarter
year item_key supplier_key
branch_key
branch location
location_key
location_key
branch_key
units_sold street
branch_name
city_key city
branch_type
dollars_sold
city_key
avg_sales city
province_or_street
Measures country